package com.yupi.yuoj.judge.strategy;

import cn.hutool.json.JSONUtil;
import com.yupi.yuoj.model.dto.question.JudgeCase;
import com.yupi.yuoj.model.dto.question.JudgeConfig;
import com.yupi.yuoj.model.entity.Question;
import com.yupi.yuoj.model.enums.JudgeInfoMessageEnum;
import com.yupi.yuoj.judge.codesandbox.model.JudgeInfo;

import java.util.List;
import java.util.Optional;

/**
 * @Author: wenjupeng
 * @Date: 2025/01/18/21:47
 * @Description:
 * @Param:
 * @return:
 */

/**
 * Java判题策略
 */
public class JavaLanguageJudgeStrategy implements JudgeStrategy{
    
    /**
     * 执行判题
     * @param judgeContext
     * @return
     */
    @Override
    public JudgeInfo doJudge(JudgeContext judgeContext) {
        
        JudgeInfo judgeInfo = judgeContext.getJudgeInfo();
        long memory = Optional.ofNullable(judgeInfo.getMemory()).orElse(0L);
        long time = Optional.ofNullable(judgeInfo.getTime()).orElse(0L);
        List<String> inputList = judgeContext.getInputList();
        List<String> outputList = judgeContext.getOutputList();
        Question question = judgeContext.getQuestion();
        List<JudgeCase> judgeCaseList = judgeContext.getJudgeCaseList();
        
        JudgeInfoMessageEnum judgeInfoMessageEnum = JudgeInfoMessageEnum.ACCEPTED;
        
        JudgeInfo judgeInfoResponse = new JudgeInfo();
        judgeInfoResponse.setMemory(memory);
        judgeInfoResponse.setTime(time);
       
        //先判断沙箱执行的结果输出数量是否和预期输出数量相等
        if(outputList.size() != inputList.size()){
            judgeInfoMessageEnum = JudgeInfoMessageEnum.WRONG_ANSWER;
            judgeInfoResponse.setMessage(judgeInfoMessageEnum.getValue());
            return judgeInfoResponse;
        }
        // 依次判断每一项输出和预期输出是否相等
        for(int i = 0;i<judgeCaseList.size();i++){
            JudgeCase judgeCase = judgeCaseList.get(i);
            if(!judgeCase.getOutput().equals(outputList.get(i))){
                judgeInfoMessageEnum = JudgeInfoMessageEnum.WRONG_ANSWER;
                judgeInfoResponse.setMessage(judgeInfoMessageEnum.getValue());
                return judgeInfoResponse;
            }
        }
        //判断题目限制
        String judgeConfigStr = question.getJudgeConfig();
        JudgeConfig judgeConfig = JSONUtil.toBean(judgeConfigStr, JudgeConfig.class);
        
        long needTimeLimit = judgeConfig.getTimeLimit();
        long needMemoryLimit = judgeConfig.getMemoryLimit();
        if(memory > needMemoryLimit){
            judgeInfoMessageEnum = JudgeInfoMessageEnum.MEMORY_LIMIT_EXCEEDED;
            judgeInfoResponse.setMessage(judgeInfoMessageEnum.getValue());
            return judgeInfoResponse;
        }
        //Java 假设程序本身需要额外执行10秒钟，
        long JAVA_PROGRAM_TIME_COST = 10000L;
        if((time -JAVA_PROGRAM_TIME_COST)> needTimeLimit){
            judgeInfoMessageEnum = JudgeInfoMessageEnum.TIME_LIMIT_EXCEEDED;
            judgeInfoResponse.setMessage(judgeInfoMessageEnum.getValue());
            return judgeInfoResponse;
        }
        judgeInfoResponse.setMessage(judgeInfoMessageEnum.getValue());
        return judgeInfoResponse;
    }
}
